CCNA
Study Material Network Interface Card (NIC) NIC is the interface between the computer and the network. It is also known as the LAN card or Ethernet card. Ethernet card have a unique 48-bit address called as MAC (Media Access Control) address Mac address is also called as Physical Address or Hardware address The 48-bit MAC Address is represented as 12 Hexadecimal digits Example: 0016.D3FC.603F Network cards are available at different speeds. Ethernet (10 Mbps) Fast Ethernet (100 Mbps) Gigabit Ethernet (1000 Mbps) Router Access Putty Hyperterminal Teraterm Mobaexterm === 25/6/24 === ARP - Address Resolution Protocol With the help of ARP, MAC addresses are stored. Source and destination has ARP table In ARP table contain Source MAC address, IP address, destination IP, Broadcast (FFFF:FFFF:FFFF) Switch Aging time of switch is 5 min/300 sec Static don’t have aging time. Only Dynamic will have an aging time. Vlan | MAC add | Type | Port Router Console port (RJ45 — RS232) RAM stores Runn